Saint John, IN 46373 ZIP Code Profile

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Saint John, IN

ZIP Code 46373: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint John, IN 46373

Not Acceptable, USPS
St John, IN 46373

  • ZIP Code Type: STANDARD
  • County: Lake County
  • Centroid: Latitude 41.452, Longitude -87.477
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 471
  • PO Box Addresses: 124
  • Residential Addresses: 5,839
    • Multi-Family Addresses: 19
    • Single Family Addresses: 5,820

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


46373 ZIP Code Map

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Saint John, IN 46373 Data & Demographics (As of July 1, 2017)


Total Population 15,218
Daytime Population: Workers 4,804
Daytime Population: Residents 7,112
Total Daytime Population (TDP) 11,916
Ratio TDP/Total Population1 0.78
Population in Households 15,210
Population in Familes 13,873
Population in Group Qrtrs 8
Population Density2 1,441
Diversity Index3 32


Median Household Income $99,664
Average Household Income $113,428
Per Capita Income $39,640


Total Housing Units 5,375 (100%)
Owner Occupied HU 4,987 (92.8%)
Renter Occupied HU 330 ( 6.1%)
Vacant Housing Units 58 ( 1.1%)
Median Home Value $272,835
Average Home Value $299,609


Total Households 5,317
Average Household Size 2.86
Family Households 4,335
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.53% 1.31%
Households 1.66% 1.39%
Families 1.5% 1.25%
Median Household Income   0.88%
Per Capita Income   2.23%

Saint John, IN 46373 - Peer Comparisons by Rank and Percentile

The table below compares 46373 to the other 785 ZIP Codes in Indiana by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 164 79th
Population Density # 104 87th
Diversity Index # 152 81st
Median Household Income # 10 99th
Per Capita Income # 28 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE Indiana Census Data Comparison Tool.

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